| Vivacharm Limited | Households | 1986 |
| Vivid Choice Ltd | Wholesale & retail | 2022 |
| Vivomedico Ltd | Health & social care | 2021 |
| Vivos Medic Services Limited | Health & social care | 2023 |
| Vizec Enterprises Ltd | Wholesale & retail | 2026 |
| Vlado G Ltd | Transport & logistics | 2013 |
| Vlondon Nails Design Ltd | Other services | 2019 |
| VM Homecare Services Limited | Health & social care | 2025 |
| Voice Show Media CIC | Health & social care | 2021 |
| Voicu Lucian Trans Ltd | Transport & logistics | 2018 |
| Voltage Plus Ltd | Construction | 2023 |
| Voltaire Residents Management Company Limited | Households | 2006 |
| VP Perera Holdings Ltd | Real estate | 2025 |
| VR Linen Limited | Administrative & support | 2019 |
| VSF Transport Ltd | Transport & logistics | 2025 |
| Vsionsync Inc Ltd | Information & communication | 2023 |
| VSM Carpentry & Joinery Limited | Construction | 2020 |
| Vsofficialmusic Productions Ltd | Information & communication | 2020 |
| VTX Consulting Limited | Professional & scientific | 2025 |
| Vulcan Softworks Ltd | Information & communication | 2005 |
| Vvgb Ltd | Construction | 2016 |
| Vyeson Court RTM Company Limited | Households | 2009 |
| W P Partnership Ltd | Administrative & support | 2018 |
| W&G Installations Limited | Construction | 2015 |
| W&K Estates Ltd | Real estate | 2022 |
| W.E.Marson and Company Limited | Manufacturing | 1937 |
| WA International UK Ltd | Wholesale & retail | 2025 |
| Wahal Ltd | Health & social care | 2023 |
| Wakabayashilite Limited | Information & communication | 2022 |
| Walfords Management Company Limited | Households | 2010 |
| Walker Trew Media Limited | Information & communication | 2010 |
| Wall IT ALL Prints Ltd | Wholesale & retail | 2026 |
| Wallers Close (Dagenham) Management Company Limited | Households | 1992 |
| Walser Properties Ltd | Administrative & support | 2017 |
| Wangwang Construction Ltd | Manufacturing | 2020 |
| Ware Autoparts Limited | Extraterritorial | 1971 |
| Waredrobe Holdings Limited | Real estate | 2024 |
| Warham Street Management Company Limited | Households | 2023 |
| Warlock Deliveries Ltd | Transport & logistics | 2022 |
| Warman Carpets and Flooring Ltd | Construction | 2025 |
| Warren Nurseries Residents (Hanworth) Limited | Households | 1973 |
| Warwick Estates Personnel Services Limited | Administrative & support | 2025 |
| Warwick Estates Property Management Ltd | Financial services | 2007 |
| Wasagu Limited | Health & social care | 2023 |
| Waterfields Carpentry and Building Services Ltd | Construction | 2023 |
| Watermark (Cardiff Bay) Management Company Limited | Households | 2006 |
| Watermark Global Limited | Transport & logistics | 2019 |
| Waters Edge (ST Albans) Management Company Limited | Households | 1999 |
| Waterside (Hampton Vale) Management Company Limited | Households | 2004 |
| Wavedash Apparel Ltd | Manufacturing | 2022 |
| Wawkins Healthcare Ltd | Health & social care | 2026 |
| Waxwing Limited | Health & social care | 2021 |
| Wayward Theatre Company Ltd | Arts & recreation | 2025 |
| Wboc Limited | Real estate | 2011 |
| WC Warehouse Logistics Ltd | Professional & scientific | 2025 |
| WE ARE Ninety One Ltd | Other services | 2019 |
| WE ARE Warriors Ltd | Other services | 2021 |
| WE Build Teams Ltd | Administrative & support | 2022 |
| WE Make Extraordinary Objects Ltd | Manufacturing | 2013 |
| WE Source IT Ltd | Professional & scientific | 2019 |
| Wealth Creation Consultants Limited | Professional & scientific | 2018 |
| Weathershield Roofing and Building Contractors Ltd | Construction | 2018 |
| Weavers Close Management Company Limited | Households | 2009 |
| Weavers Court RTM Company Limited | Households | 2017 |
| Webber Life Sciences Services Ltd | Professional & scientific | 2023 |
| Webtvnet.Co.Uk Limited | Information & communication | 2013 |
| Wecanhire Ltd | Construction | 2022 |
| Welbeck Court Management Company Limited | Households | 2014 |
| Well Driven Limited | Information & communication | 2015 |
| Welltech Global Business UK Limited | Administrative & support | 2021 |
| Wemisphere Ltd | Health & social care | 2024 |
| WEN Restaurant Ltd | Hospitality | 2025 |
| Wesley James Limited | Professional & scientific | 2017 |
| Wesleyan Court (Kingswood) Management Company Ltd | Households | 2018 |
| West END Court (Pinner) Management Limited | Households | 2003 |
| West Hill Hall Limited | Households | 1995 |
| West Hill Hall Management Company Limited | Households | 1987 |
| West Lodge Court Limited | Real estate | 2003 |
| West One Interiors Ltd | Construction | 2014 |
| West Wing Properties Limited | Administrative & support | 2021 |
| Western Medicals Ltd | Health & social care | 2013 |
| Westgate Remit & Exchange Limited | Financial services | 2017 |
| Westhill Mews Management Company Limited | Households | 2014 |
| Westhill RTM Company Limited | Households | 2011 |
| Westking Group Ltd | Wholesale & retail | 2024 |
| WESTOM1 Limited | Administrative & support | 2018 |
| Westpaq Limited | Other services | 2016 |
| Westview Sports Management Ltd | Professional & scientific | 2021 |
| Westwood Cleaning Services Limited | Administrative & support | 2020 |
| Wevisualise Limited | Professional & scientific | 2026 |
| What I Call Productions Ltd | Administrative & support | 2019 |
| What's the Film Ltd | Arts & recreation | 2021 |
| Whats the Fragrance Ltd | Wholesale & retail | 2025 |
| Wheelies Garage Ltd | Wholesale & retail | 2023 |
| Wheelpower Ltd | Manufacturing | 2026 |
| Whelby Limited | Administrative & support | 1995 |
| Whip'D Cosmetics Ltd | Wholesale & retail | 2024 |
| Whiskers LLP | | 2007 |
| Whitbread Lavers Estates Limited | Real estate | 2019 |
| Whitbread Sams Property Group Limited | Real estate | 2020 |